tree c9e43f9b6e11ce41d976025c6f9d94c273521132
parent b0d9bcd4bb79a7834f8492f2ae5c2655a551f23d
author Hugh Dickins <hugh@veritas.com> 1125788072 -0700
committer Linus Torvalds <torvalds@evo.osdl.org> 1125903940 -0700

[PATCH] swap: correct swapfile nr_good_pages

If a regular swapfile lies on a filesystem whose blocksize is less than
PAGE_SIZE, then setup_swap_extents may have to cut the number of usable swap
pages; but sys_swapon's nr_good_pages was not expecting that.  Also,
setup_swap_extents takes no account of badpages listed in the swap header: not
worth doing so, but ensure nr_badpages is 0 for a regular swapfile.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>